WO2014162863A1 - Dispositif de transport de palettes et procédé de transport de palettes - Google Patents

Dispositif de transport de palettes et procédé de transport de palettes Download PDF

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Publication number
WO2014162863A1
WO2014162863A1 PCT/JP2014/057240 JP2014057240W WO2014162863A1 WO 2014162863 A1 WO2014162863 A1 WO 2014162863A1 JP 2014057240 W JP2014057240 W JP 2014057240W WO 2014162863 A1 WO2014162863 A1 WO 2014162863A1
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WO
WIPO (PCT)
Prior art keywords
pallet
rail
endless belt
concavo
moving mechanism
Prior art date
Application number
PCT/JP2014/057240
Other languages
English (en)
Japanese (ja)
Inventor
博文 齋藤
Original Assignee
日特エンジニアリング株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日特エンジニアリング株式会社 filed Critical 日特エンジニアリング株式会社
Priority to EP14779158.6A priority Critical patent/EP2982619B1/fr
Priority to US14/414,465 priority patent/US10071864B2/en
Priority to KR1020157000784A priority patent/KR101670190B1/ko
Priority to CN201480001996.6A priority patent/CN104507834B/zh
Publication of WO2014162863A1 publication Critical patent/WO2014162863A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
    • B23Q16/02—Indexing equipment
    • B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/005—Lifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1421—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with a parallel disposition of working devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
    • B23Q7/1447—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices using endless conveyors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G35/00—Mechanical conveyors not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0267—Pallets

Definitions

  • the present invention relates to a pallet conveying apparatus and a pallet conveying method for conveying one or more pallets on which a workpiece can be placed along a predetermined trajectory.
  • the pallet transport device provided in the conventional production line transports the pallet in a state in which a work requiring processing is placed on the pallet.
  • the pallet conveying device is provided with a machine tool, and the machine tool performs a predetermined process on the conveyed workpiece.
  • Japanese Patent Application Laid-Open No. 2011-93032 discloses a pallet transport device that transports a plurality of pallets on which workpieces can be placed on a square track in a horizontal plane with respect to the machine tool.
  • This pallet transport device includes a rear side and a front side pallet rail extending in parallel to each other, and a pallet moving mechanism for moving a pallet mounted on one of the back side and the front side pallet rail to the other side.
  • Each pallet is engaged with an endless belt that circulates in the pallet conveying device.
  • the pallet conveying device conveys each pallet along the back side and the near side pallet rail.
  • An object of the present invention is to provide a pallet transport apparatus and a pallet transport method that enable quick transport of pallets without increasing the exclusive area.
  • a pallet transport device configured to transport one or more pallets on which a workpiece can be placed, the first pallet rail on which the pallet is movably mounted;
  • the pallet is movably mounted, and is configured to circulate along the first pallet rail, a second pallet rail provided parallel to the first pallet rail at a predetermined interval in the vertical direction.
  • a first pallet feeding mechanism including a first endless belt in which irregularities extending in the belt width direction are continuously formed in the belt longitudinal direction, and configured to circulate along the second pallet rail.
  • a second pallet feeding mechanism comprising a second endless belt in which irregularities extending in the belt width direction are continuously formed in the belt longitudinal direction, and the pallet
  • a pallet moving mechanism that moves from one of the first pallet rail and the second pallet rail to the other of the first pallet rail and the second pallet rail, and the first endless belt and the second endless belt are And provided with a predetermined interval in the vertical direction, and arranged so that the belt width direction coincides with the vertical direction, and the pallet is moved to the first pallet rail by the pallet moving mechanism.
  • An uneven portion configured to engage with the unevenness of the first endless belt and configured to engage with the unevenness of the second endless belt when the pallet is raised to the second pallet rail by the pallet moving mechanism;
  • a pallet transport apparatus is provided.
  • a pallet transport method using the pallet transport device wherein the pallet engaged with the first endless belt is moved to the first pallet by the first pallet feed mechanism.
  • the pallet is moved from the second pallet rail to the first pallet rail by the pallet moving mechanism so that the concavo-convex part of the pallet and the concavo-convex part of the first endless belt are engaged with each other.
  • a second pallet moving step for lowering the pallet for lowering the pallet.
  • FIG. 1 is a front view of a pallet carrying device according to an embodiment of the present invention.
  • FIG. 2 is a front view of the pallet transport device showing a state after the pallet is transported along the first pallet rail and before the pallet is moved to the second pallet rail.
  • FIG. 3 is a front view of the pallet conveying apparatus showing a state after the pallet is moved to the second pallet rail and before the pallet is conveyed along the second pallet rail.
  • FIG. 4 is a front view of the pallet transport device showing a state after the pallet is transported along the second pallet rail and before the pallet is moved to the first pallet rail.
  • FIG. 5 is a longitudinal sectional view of the pallet carrying device taken along line AA in FIG.
  • FIG. 6 is a plan view of the pallet carrying device.
  • a pallet transport apparatus 10 will be described with reference to FIGS.
  • three axes that is, an X axis, a Y axis, and a Z axis, which are orthogonal to each other, are set.
  • the X axis indicates the horizontal horizontal direction
  • the Y axis indicates the horizontal front-rear direction.
  • the Z axis indicates the vertical direction (up and down direction).
  • the pallet conveyance device 10 is a conveyance device provided in a line for manufacturing a stator such as a motor, for example. As shown in FIG. 6, the pallet transport device 10 includes five machine tools 1 to 5. These machine tools 1 to 5 are provided in a line at a predetermined pitch P in the X-axis direction.
  • Each of the machine tools 1 to 5 sequentially performs various processes such as insertion of an insulating member, caulking of lead wires of each phase coil, welding and the like on the workpiece conveyed by the pallet conveying device 10. By these machine tools 1 to 5, the stator is automatically manufactured.
  • the pallet transport device 10 transports a plurality of pallets 11 and transports the workpieces placed on the pallets 11 to the machine tools 1 to 5.
  • the pallet carrying device 10 holds the workpiece at a predetermined position using the pallet 11 during machining by the machine tools 1 to 5.
  • the number of pallets 11 is set to 1 or 2 or more according to the number of machine tools 1 to 5.
  • the pallet carrying device 10 includes first and second pallet rails 12 and 13 extending in the X-axis direction.
  • the first pallet rail 12 and the second pallet rail 13 are arranged in parallel to each other with a predetermined interval in the vertical direction (up and down direction). Further, the first pallet rail 12 and the second pallet rail 13 are arranged substantially parallel to the machine tools 1 to 5 (see FIG. 6) arranged straight in the X-axis direction.
  • the machine tools 1 to 5 are installed on the front side or the back side of the first pallet rail 12 and the second pallet rail 13.
  • the pallet transport device 10 includes a mounting plate 14 that is horizontally fixed to the upper surface of the gantry 9, and a first horizontal plate 17 that is horizontally mounted to the mounting plate 14 via a column 16. And a second horizontal plate 18 disposed horizontally above the first horizontal plate 17 at a predetermined interval.
  • a side wall plate 8 is attached to one side of the first horizontal plate 17 and the second horizontal plate 18 in the Y-axis direction so as to connect both.
  • the first horizontal plate 17 and the second horizontal plate 18 are arranged in parallel to each other with a predetermined interval in the vertical direction.
  • 1st and 2nd support plates 17a and 18a are being fixed to the other side part in the Y-axis direction of the 1st and 2nd horizontal plates 17 and 18 along the longitudinal direction.
  • the first pallet rail 12 is fixed to the upper surface of the first support plate 17a by screwing
  • the second pallet rail 13 is fixed to the upper surface of the second support plate 18a by screwing.
  • the first and second pallet rails 12 and 13 are commercially available linear motion guide rails.
  • the pallet 11 is formed so as to straddle the first and second pallet rails 12 and 13, and the linear motion block 11 a that can move on the rails 12 and 13, and a screw on the block 11 a And a fixed base 11b.
  • a locking member 19 is provided on the side surface of the pedestal 11b on the side wall plate 8 side.
  • the linear motion block 11a of the pallet 11 is a part corresponding to the linear motion guide rail and includes a roller retainer.
  • the pallet 11 is mounted so as to be movable with respect to the first and second pallet rails 12 and 13.
  • the linear motion block 11 a prohibits movement of the pallet 11 in the width direction (Y-axis direction) and reduces resistance when the pallet 11 moves along the first and second pallet rails 12 and 13.
  • the length of the pallet 11 in the X-axis direction (the length of the base 11b) L is set equal to or shorter than the pitch P, which is the installation interval of the machine tools 1-5.
  • the In the pallet transport device 10, the plurality of pallets 11 are moved along the second pallet rail 13 corresponding to the pitch P, so that the workpieces placed on the pallets 11 face each of the machine tools 1 to 5. It becomes.
  • the pallet carrying device 10 moves the pallet 11 mounted on one of the first pallet rail 12 and the second pallet rail 13 to the other of the first pallet rail 12 and the second pallet rail 13. Further, pallet moving mechanisms 20 and 25 are provided.
  • the pallet moving mechanism includes a first pallet moving mechanism 20 that moves the pallet 11 from the second pallet rail 13 to the first pallet rail 12, and a second pallet that moves the pallet 11 from the first pallet rail 12 to the second pallet rail 13. And a moving mechanism 25.
  • the first and second pallet moving mechanisms 20 and 25 are provided so as to sandwich the first and second pallet rails 12 and 13 from both sides in the longitudinal direction (X-axis direction). That is, the first pallet moving mechanism 20 is disposed on one side of the first and second pallet rails 12 and 13, and the second pallet moving mechanism 25 is on the other end side of the first and second pallet rails 12 and 13. Placed in the direction.
  • the first and second pallet moving mechanisms 20 and 25 are symmetrical to each other. As shown in FIG. 1, the first and second pallet moving mechanisms 20 and 25 include lift actuators 21 and 26 that are attached to stand vertically with respect to the attachment plate 14. Each has.
  • the elevating actuator 21 (first elevating actuator) includes an elongated box-shaped housing 21a erected in the vertical direction (Z-axis direction) from the mounting plate 14, and a ball screw 21b provided so as to extend in the vertical direction in the housing 21a. And a servo motor 21c that rotationally drives the ball screw 21b, and a follower 21d that engages with the ball screw 21b and moves up and down in the vertical direction by the rotation of the ball screw 21b.
  • the lifting / lowering actuator 26 (second lifting / lowering actuator) is provided so as to extend in the vertical direction in the housing 26a and an elongated box-shaped housing 26a erected vertically from the mounting plate 14 (Z-axis direction).
  • the first pallet moving mechanism 20 further includes a first movable rail 22 on which the pallet 11 can be mounted
  • the second pallet moving mechanism 25 further includes a second movable rail 27 on which the pallet 11 can be mounted.
  • the first movable rail 22 is attached horizontally to the follower 21d of the elevating actuator 21 via an L-shaped attachment member 21e, and extends in the Y-axis direction.
  • the second movable rail 27 is attached horizontally to the follower 26d of the elevating actuator 26 via an L-shaped attachment member 26e, and extends in the Y-axis direction.
  • the servomotors 21c and 26c are driven to rotate the ball screws 21b and 26b and the followers 21d and 26d screwed to the ball screws 21b and 26c are moved up and down, the solid line arrows in FIGS. As shown, the first and second movable rails 22 and 27 move up and down together with the followers 21d and 26d.
  • the first and second movable rails 22 and 27 are linearly connected to the first pallet rail 12 as shown in FIGS. 1 and 2 at the most lowered position (down position), and are at the most elevated position (up position). 3 and 4, the second pallet rail 13 is connected linearly.
  • the length W (see FIG. 4) of the first and second movable rails 22 and 27 in the X-axis direction is the same as or longer than the length L (see FIG. 6) of the pallet 11 in the X-axis direction. Is set. That is, the first and second movable rails 22 and 27 are configured to be movable in the vertical direction while the pallet 11 is mounted.
  • each of the first and second movable rails 22 and 27 is mounted with one of the pallets 11 arranged at the same pitch as the pitch P that is the installation interval of the machine tools 1 to 5. . That is, the distance between the first movable rail 22 and the second movable rail 27 in the X-axis direction is set to be an integral multiple of the pitch P of the pallet 11, and the lift actuators 21 and 26 satisfy the setting. Installed on the mounting plate 14.
  • the pallet conveying device 10 further includes a first pallet feeding mechanism 30 that conveys the pallet 11 along the first pallet rail 12 and a second pallet feeding mechanism 40 that conveys the pallet 11 along the second pallet rail 13. I have.
  • the first pallet feed mechanism 30 and the second pallet feed mechanism 40 have the same structure.
  • the first pallet feed mechanism 30 is provided on the first horizontal plate 17, and the second pallet feed mechanism 40 is provided on the second horizontal plate 18 positioned above the first horizontal plate 17.
  • the first pallet feed mechanism 30 is configured to be engageable with the pallet 11 and circulates along the first pallet rail 12, and a first circulator mechanism that circulates the first endless belt 31. And a servo motor 32.
  • the second pallet feed mechanism 40 is configured to be able to engage with the pallet 11 and circulates along the second pallet rail 13 as a circulation mechanism that circulates the second endless belt 41.
  • the second servo motor 42 is provided.
  • the pallet feeding mechanism will be described on behalf of the second pallet feeding mechanism 40 provided on the second horizontal plate 18.
  • idle pulleys 43 to 46 are rotatably provided at substantially four corners of the second horizontal plate 18, respectively.
  • a second endless belt 41 is wound around the four idle pulleys 43 to 46 so as to surround the pulleys.
  • the tension of the second endless belt 41 is set so that the belt positioned between the idle pulleys 44 and 45 on the second pallet rail 13 side is substantially parallel to the second pallet rail 13.
  • the second endless belt 41 is configured such that a belt parallel to the second pallet rail 13 reaches the first movable rail 22 and the second movable rail 27 that are continuous with the second pallet rail 13.
  • Notches 18c and 18d for preventing interference with the two horizontal plates 18 are formed.
  • a second drive pulley 47 and a second driven pulley 48 are provided so as to push the second endless belt 41 inward from both sides in the longitudinal direction (X-axis direction). It is done.
  • the second drive pulley 47 is driven by a second servo motor 42 as a circulation mechanism.
  • the second servo motor 42 is fixed to the second horizontal plate 18, and the second drive pulley 47 is attached to the rotation shaft 42 a of the second servo motor 42.
  • the rotation shaft 42a of the second servo motor 42 rotates together with the second drive pulley 47, and the second endlessly wound around the second drive pulley 47.
  • the belt 41 circulates while being wound around the four idle pulleys 43 to 46.
  • the second driven pulley 48 is rotatably attached to the second horizontal plate 18 via the position adjusting mechanism 49.
  • the position adjusting mechanism 49 is provided on the second horizontal plate 18 so as to extend in parallel with the second pallet rail 13, and is movably provided on the rail 49a.
  • the second driven pulley 48 is rotatably arranged on the base portion 49b of the position adjusting mechanism 49, and the X-axis direction position of the second driven pulley 48 is adjusted by moving the base portion 49b with the screw member 49d.
  • the position of the second driven pulley 48 in the X-axis direction it is possible to adjust the tension of the second endless belt 41 wound around the pulleys 43, 44, 45, 46, 47, 48. Become.
  • the first pallet feed mechanism 30 is configured in the same manner as the second pallet feed mechanism 40. As shown in FIG. 4, the first pallet feed mechanism 30 includes idle pulleys 33 to 36, a first drive pulley 37, a first driven pulley 38 provided on the first horizontal plate 17, and these pulleys 33 to 36, And a first endless belt 31 wound around 37,38.
  • the first drive pulley 37 is driven by a first servo motor 32 as a circulation mechanism.
  • the first servo motor 32 is fixed to the first horizontal plate 17, and the first drive pulley 37 is attached to the rotation shaft 32 a of the first servo motor 32.
  • the first pallet feed mechanism 30 includes a position adjustment mechanism that can adjust the position of the first driven pulley 38 in the X-axis direction in order to adjust the tension of the first endless belt 31.
  • the first and second endless belts 31 and 41 are so-called toothed belts. Since the first and second endless belts 31 and 41 have the same structure, the second endless belt 41 will be described as a representative. As shown in the enlarged view of FIG. 6, the second endless belt 41 is configured such that concave portions 41a and convex portions 41b extending in the belt width direction are alternately continued in the belt longitudinal direction. Below, the recessed part 41a and the convex part 41b are collectively called the unevenness
  • the second endless belt 41 is wound around idle pulleys 43 to 46 provided on the second horizontal plate 18, and is arranged so that the belt width direction coincides with the vertical direction (Z-axis direction).
  • the first horizontal plate 17 provided with the first endless belt 31 and the second horizontal plate 18 provided with the second endless belt 41 are provided in parallel to each other with a predetermined interval in the vertical direction. Therefore, the first endless belt 31 and the second endless belt 41 are arranged at a predetermined interval in the vertical direction with the belt width direction coinciding with the vertical direction.
  • the locking member 19 of the pallet 11 has convex portions that can be engaged with the concave and convex portions 31 a and 31 b of the first endless belt 31 and the concave and convex portions 41 a and 41 b of the second endless belt 41. 19a and a recess 19b are formed.
  • the locking member 19 is a member attached to the side surface of the base 11b of the pallet 11 on the belt side, and the protrusions 19a and the recesses 19b of the locking member 19 extend in the vertical direction and alternately continue in the longitudinal direction. Is formed.
  • the convex portion 19a and the concave portion 19b of the locking member 19 are collectively referred to as the concave and convex portions 19a and 19b of the pallet 11.
  • the first horizontal plate 17 is provided with a support member 17 b that holds the first endless belt 31 from the back side along the longitudinal direction
  • the second horizontal plate 18 is provided with a second endless belt 41.
  • a support member 18b that is pressed from the back side along the longitudinal direction is provided.
  • the support member 18b Since the support member 17b and the support member 18b have the same structure, the support member 18b provided on the second horizontal plate 18 will be described as a representative. As shown in the enlarged view of FIG. 6, the support member 18 b has the second endless belt 41 on the back side when the concave and convex portions 19 a and 19 b of the pallet 11 are engaged with the concave and convex portions 41 a and 41 b of the second endless belt 41. The second endless belt 41 is prevented from being bent by being pressed from above.
  • the support member 18b causes the bent second endless belt 41 to rise from the locking member 19 of the pallet 11, and the engagement between the concave and convex portions 19a and 19b of the pallet 11 and the concave and convex portions 41a and 41b of the second endless belt 41. Prevents the combination from being released.
  • the pallet 11 has the first And it is prohibited to move in the X-axis direction independently of the second endless belts 31 and 41.
  • the pallet 11 moves together with the first and second endless belts 31 and 41 and is conveyed along the first and second pallet rails 12 and 13.
  • the unevenness 31a, 31b of the first endless belt 31, the unevenness 41a, 41b of the second endless belt 41, and the unevenness portions 19a, 19b of the pallet 11 are formed so as to extend in the vertical direction (Z-axis direction). Therefore, when the pallet 11 moves up and down in the vertical direction, the unevenness 31a and 31b of the first endless belt 31 and the unevenness 41a and 41b of the second endless belt 41 and the unevenness portions 19a and 19b of the pallet 11 shift in the vertical direction. It will be. Thereby, the locking member 19 of the pallet 11 is disengaged from the first and second endless belts 31 and 41, and the engagement state between the pallet 11 and the first and second endless belts 31 and 41 is released. Then, when the pallet 11 is moved up and down again to the positions of the first and second endless belts 31 and 41, the uneven portions 19a and 19b of the pallet 11 are engaged with the belts 31 and 41.
  • the first and second movable rails 22 and 27 on which the pallet 11 is mounted are moved up and down and separated from the first and second pallet rails 12 and 13, so And the engagement state with the 2nd endless belts 31 and 41 is cancelled
  • the first and second movable rails 22 and 27 are moved up and down and linearly connected to the first and second pallet rails 12 and 13, so that the pallet 11 and the first and second endless belts 31 are connected. , 41 are engaged.
  • the pallet transporting method by the pallet transporting device 10 includes a first pallet transporting process for transporting the pallet 11 along the first pallet rail 12 and a first pallet transporting the pallet 11 from the first pallet rail 12 to the second pallet rail 13.
  • the pallet 11 is transported using the pallet transport device 10.
  • the first pallet rail 12 and the second pallet rail 13 are provided in parallel to each other with a predetermined interval in the vertical direction.
  • the first endless belt 31 that conveys the pallet 11 is formed with irregularities 31a and 31b extending in the belt width direction, and the first endless belt 31 is disposed so that the width direction thereof coincides with the vertical direction.
  • the second endless belt 41 that conveys the pallet 11 is formed with irregularities 41a and 41b extending in the belt width direction, and the second endless belt 41 is disposed so that the width direction thereof coincides with the vertical direction. Is done.
  • the pallet 11 is formed with uneven portions 19 a and 19 b that can be engaged with the uneven portions 31 a and 31 b of the first endless belt 31 and the uneven portions 41 a and 41 b of the second endless belt 41.
  • each of the machine tools 1 to 5 performs predetermined processing on the workpiece placed on the pallet 11 located on the second pallet rail 13. Below, each process of a pallet conveyance method is demonstrated.
  • First pallet transport process In the first pallet transporting process, the pallet 11 mounted on the first pallet rail 12 positioned below the second pallet rail 13 is transported.
  • the first movable rail 22 on which the pallet 11 is mounted is lowered to connect the first movable rail 22 and the first pallet rail 12 linearly.
  • the first movable rail 22 and the pallet 11 descend through the notch 17 d of the first horizontal plate 17 and the first movable rail 22 is connected to the first pallet rail 12, the first movable rail 22 and the pallet 11 are mounted on the first movable rail 22.
  • the concave and convex portions 19 a and 19 b of the pallet 11 engage with the concave and convex portions 31 a and 31 b of the first endless belt 31 that are parallel to the first pallet rail 12.
  • the pallet 11 may be arranged on the first pallet rail 12 from the end of the first pallet rail 12 with the first and second movable rails 22 and 27 raised. Even in this way, the uneven portions 19 a and 19 b of the pallet 11 and the uneven portions 31 a and 31 b of the first endless belt 31 can be engaged.
  • the first endless belt 31 After engaging the concavo-convex portions 19a and 19b of the pallet 11 with the concavo-convex portions 31a and 31b of the first endless belt 31, the first endless belt 31 is circulated by driving the servo motor 32 of the first pallet feeding mechanism 30. . As a result, the pallet 11 engaged with the first endless belt 31 is conveyed from the left side to the right side in the drawing along the first pallet rail 12 as shown in FIGS.
  • the pallet conveying apparatus 10 is configured such that each machine tool 1 to 5 (see FIG. 6) performs a predetermined process on the workpiece of the pallet 11 on the second pallet rail 13. Therefore, the pallet 11 on the first pallet rail 12 is only transported from the first movable rail 22 toward the right end of the first pallet rail 12.
  • First pallet moving process In the first pallet moving step, the pallet 11 is raised from the first pallet rail 12 to the second pallet rail 13.
  • the second movable rail 27 is lowered to the lowered position by the second pallet moving mechanism 25, and the second movable rail 27 and the first pallet rail 12 are continuously connected. Thereafter, the pallet 11 is moved from the end of the first pallet rail 12 to the second movable rail 27 by the first pallet feed mechanism 30.
  • the second movable rail 27 After moving to the second movable rail 27, as shown in FIG. 3, the second movable rail 27 is raised to the raised position, and the second movable rail 27 and the second pallet rail 13 are continuously connected. That is, the second movable rail 27 on which the pallet 11 is mounted rises to a predetermined ascending position and then stops in a state where it is connected to the second pallet rail 13.
  • the second movable rail 27 rises and separates from the first pallet rail 12, the engagement between the pallet 11 and the first endless belt 31 is released, and thus the upward movement of the second movable rail 27 is hindered. There is no.
  • first movable rail 22 and the second pallet rail 13 are continuously connected by raising the first movable rail 22 by the lift actuator 21 of the first pallet moving mechanism 20.
  • the pallet 11 on the second movable rail 27 follows the second pallet rail 13 as shown in FIG. Engaged with the second endless belt 41 provided. Thereafter, when the servo motor 42 of the second pallet feed mechanism 40 is driven to circulate the second endless belt 41, the pallet 11 moves from the second movable rail 27 to the second pallet rail 13 as shown in FIG. And conveyed along the second pallet rail 13.
  • Servo motor 42 is controlled so that each pallet 11 is temporarily stopped while facing each machine tool 1-5. In this way, the pallet 11 on the second pallet rail 13 moves from the right end to the left end of the second pallet rail 13 while repeatedly carrying and stopping.
  • the pallet 11 on which the work that has been processed by the machine tools 1 to 5 is placed is the second pallet. It is conveyed from the left end of the rail 13 onto the first movable rail 22.
  • the first pallet moving mechanism 20 lowers the first movable rail 22 in the raised position shown in FIG. 4 to the lowered position shown in FIG. That is, the first movable rail 22 on which the pallet 11 is mounted descends to a predetermined lowered position and then stops in a state where it is connected to the first pallet rail 12.
  • the engagement between the pallet 11 and the second endless belt 41 is released, so that the downward movement of the first movable rail 22 is inhibited. There is no.
  • the pallet 11 on the first movable rail 22 is a first endless provided along the first pallet rail 12. Engage with the belt 31.
  • the second movable rail 27 and the first pallet rail 12 are connected by lowering the second movable rail 27 by the lifting actuator 26 of the second pallet moving mechanism 25.
  • the pallet 11 can be conveyed counterclockwise by one by performing the conveying cycle shown in FIGS. 1 to 4 once.
  • the machine tools 1 to 5 are operated in a state where the transport of the pallet 11 is stopped.
  • various processes such as insertion of the insulating member, caulking of the lead wires of the respective phase coils, and welding are performed on the workpieces of the respective pallets 11 arranged on the second pallet rail 13.
  • the work is carried into and out of any pallet 11 on the second pallet rail 13.
  • each pallet 11 moves along the first pallet rail 12 while being engaged with the first endless belt 31 and is engaged with the second endless belt 41. It moves along the second pallet rail 13 in a state.
  • the pallet 11 can be transported at a high speed, and the pallet 11 can be reliably stopped at a predetermined position. As a result, productivity can be improved.
  • the pallet 11 is configured to be engageable with the first and second endless belts 31 and 41, and the first and second endless belts 31 and 41 are connected to each other.
  • the engaged pallet 11 is conveyed along the first and second pallet rails 12 and 13.
  • the first pallet rail 12 and the second pallet rail 13 are provided in parallel in the vertical direction with a predetermined interval therebetween, and the machine tools 1 to 5 are the first and second machines. It is arranged on the near side or the far side of the pallet rails 12 and 13.
  • the machine tools 1 to 5 are not arranged between the first and second pallet rails 12 and 13, even if the machine tools 1 to 5 are relatively large devices, The distance between the second pallet rails 12 and 13 does not increase. Therefore, even when the machine tools 1 to 5 are arranged, it is possible to suppress an increase in the occupied area occupied by the pallet transport device 10.
  • the first and second pallet moving mechanisms 20 and 25 are configured to move the pallet 11 to the first pallet rail 12 or the second pallet rail 13 by moving the pallet 11 up and down in the vertical direction.
  • the vertical movement distance of the pallet 11 is a predetermined distance in the vertical direction of the first and second pallet rails 12 and 13.
  • the predetermined distance is set to the vertical thickness of the pallet 11 or the vertical thickness of the pallet 11 including the work when the work is placed on the pallet 11. Therefore, the distance by which the pallet moving mechanisms 20 and 25 move (lift) the pallet 11 can be remarkably shortened as compared with a conventional pallet transport device that moves across the machine tool in the horizontal direction. As a result, the moving time of the pallet 11 by the pallet moving mechanisms 20 and 25 can be shortened, and the pallet 11 can be transported quickly.
  • the first endless belt 31 is arranged so that the extending direction of the irregularities 31a, 31b matches the vertical direction
  • the second endless belt 41 is arranged so that the extending direction of the irregularities 41a, 41b matches the vertical direction.
  • the pallet 11 is provided with uneven portions 19 a and 19 b that can be engaged with the uneven portions 31 a and 31 b of the first endless belt 31 and the uneven portions 41 a and 41 b of the second endless belt 41.
  • the concave and convex portions 19 a and 19 b engage with the concave and convex portions 31 a and 31 b of the first endless belt 31, and when the pallet 11 is raised to the second pallet rail 13, the concave and convex portions 19 a and 19 b Is configured to engage with the irregularities 41 a and 41 b of the second endless belt 41. For this reason, the pallet 11 and the 1st and 2nd endless belts 31 and 41 can be easily engaged only by raising / lowering the pallet 11, and a complicated engagement means becomes unnecessary. As a result, the pallet 11 can be quickly conveyed.
  • the belt width direction of the first and second endless belts 31 and 41 coincides with the vertical direction, the first and second endless belts 31 and 41 are not easily bent due to their own weights and are further placed on the pallet 11. Less affected by the weight of the workpiece. As a result, it is possible to prevent the pallet 11 from being detached from the first and second endless belts 31 and 41 due to a shift in the conveyance position called “step jump” and belt bending, and it is faster and more stable than the prior art. Thus, the pallet 11 can be transported. If the first and second endless belts 31 and 41 are bent in the width direction, it is possible to avoid the problem by providing a predetermined number of outer ring U-groove bearings or the like directly under the belt. it can.
  • the pallet conveyance device 10 may be configured to convey the pallet 11 not in the counterclockwise direction but in the clockwise direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Workpieces (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Warehouses Or Storage Devices (AREA)

Abstract

L'invention concerne un dispositif de transport de palettes (10) comprenant : un premier rail de palettes (12) ; un second rail de palettes (13) qui est disposé parallèle au premier rail de palettes (12) et à une distance verticale prédéterminée de celui-ci ; un premier mécanisme d'introduction de palettes (30) qui est doté d'une première courroie sans fin (31) sur laquelle sont formés des évidements et des saillies (31a, 31b) s'étendant dans la direction de la largeur de la courroie ; un second mécanisme d'introduction de palettes (40) qui est doté d'une seconde courroie sans fin (41) sur laquelle sont formés des évidements et des saillies (41a, 41b) s'étendant dans la direction de la largeur de la courroie ; et des mécanismes de déplacement de palettes (20, 25) qui déplacent une palette (11) depuis le premier rail de palettes (31) vers le second rail de palettes (41) ou inversement. Les première et seconde courroies sans fin (31, 41) sont disposées à une distance verticale prédéterminée l'une de l'autre et sont agencées de sorte que la direction de la largeur des palettes corresponde à la direction verticale. Les évidements et saillies (19a, 19b) de la palette (11) se déplacent tout en étant en prise avec les évidents et saillies (31a, 31b, 41a, 41b) des première et seconde courroies sans fin (31, 41).
PCT/JP2014/057240 2013-04-05 2014-03-18 Dispositif de transport de palettes et procédé de transport de palettes WO2014162863A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14779158.6A EP2982619B1 (fr) 2013-04-05 2014-03-18 Dispositif de transport de palettes et procédé de transport de palettes
US14/414,465 US10071864B2 (en) 2013-04-05 2014-03-18 Pallet carrying apparatus and pallet carrying method
KR1020157000784A KR101670190B1 (ko) 2013-04-05 2014-03-18 팔레트 반송 장치 및 팔레트 반송 방법
CN201480001996.6A CN104507834B (zh) 2013-04-05 2014-03-18 托板输送装置以及托板输送方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-079268 2013-04-05
JP2013079268A JP6112713B2 (ja) 2013-04-05 2013-04-05 パレット搬送装置及びパレット搬送方法

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Publication Number Publication Date
WO2014162863A1 true WO2014162863A1 (fr) 2014-10-09

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US (1) US10071864B2 (fr)
EP (1) EP2982619B1 (fr)
JP (1) JP6112713B2 (fr)
KR (1) KR101670190B1 (fr)
CN (1) CN104507834B (fr)
TW (1) TWI523729B (fr)
WO (1) WO2014162863A1 (fr)

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JP6439564B2 (ja) * 2015-04-17 2018-12-19 株式会社豊田自動織機 搬送装置
JP6447340B2 (ja) * 2015-04-17 2019-01-09 株式会社豊田自動織機 搬送装置
JP6650651B2 (ja) * 2015-08-25 2020-02-19 Ｎｉｔｔｏｋｕ株式会社 パレット搬送装置及びそれを用いたパレット搬送方法
JP6536298B2 (ja) * 2015-09-02 2019-07-03 株式会社豊田自動織機 搬送装置
WO2017073305A1 (fr) * 2015-10-30 2017-05-04 日特エンジニアリング株式会社 Dispositif de transport de palettes
JP6621205B2 (ja) * 2015-10-30 2019-12-18 Ｎｉｔｔｏｋｕ株式会社 パレット搬送装置
JP6681182B2 (ja) * 2015-12-04 2020-04-15 株式会社Ｓｃｒｅｅｎホールディングス 搬送装置、処理装置、および搬送方法
DE112017002915B4 (de) * 2016-06-08 2021-09-02 Nittoku Co., Ltd. Palettentransportvorrichtung
CN106141777A (zh) * 2016-07-27 2016-11-23 耐世特凌云驱动***（芜湖）有限公司 汽车轴承cv环加工上料装置
CN106217150A (zh) * 2016-07-27 2016-12-14 耐世特凌云驱动***（芜湖）有限公司 外环复合磨床上下料温度检测装置
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CN107161663A (zh) * 2017-05-17 2017-09-15 苏州电瓷厂股份有限公司 一种上料装置
JP7028691B2 (ja) * 2018-03-29 2022-03-02 Ｎｉｔｔｏｋｕ株式会社 パレット搬送装置
CN110271829B (zh) * 2019-05-15 2020-04-17 中联重科股份有限公司 粘稠物质输送设备
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CN111408851B (zh) * 2020-04-02 2021-11-30 上海精测半导体技术有限公司 一种多工位轮转设备
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KR101670190B1 (ko) 2016-10-27
EP2982619A4 (fr) 2016-11-30
TW201502046A (zh) 2015-01-16
JP2014200887A (ja) 2014-10-27
JP6112713B2 (ja) 2017-04-12
TWI523729B (zh) 2016-03-01
US20150175362A1 (en) 2015-06-25
KR20150023725A (ko) 2015-03-05
EP2982619B1 (fr) 2018-03-14
US10071864B2 (en) 2018-09-11
EP2982619A1 (fr) 2016-02-10
CN104507834B (zh) 2016-11-30
CN104507834A (zh) 2015-04-08

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